Sebastian König (Bonn):

Coulomb effects in pionless effective field theory

Abstract:

At very low energies, nuclear interactions can be considered purely short-ranged and even pion exchanges can be integrated out. The resulting pionless effective field theory has been successfully applied to the low-energy neutron-deuteron system. Moreover, it has been shown that Coulomb effects can be included to describe proton-deuteron scattering in the quartet channel using the same methods. In this talk, I will show how to improve the numerical convergence in the p-d system at very low-momenta. Furthermore, I will present the extension to the doublet channel, where the Triton and He-3 bound states show up.

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